11560+3520 CHR 258

 
 
11H 56M 00.24S +35 20' 26.1" P.A. 119.7 SEP 0.17 MAG 7.00,9.10 SP F5 DIST. 72.15 PC (235.35 L.Y.)
 
 
Coord 2000
11560+3520
Discov num
CHR 258
Comp
Coord arcsec 2000
11 56 00.24 +35 20 26.1
Date first
1991
Date last
2007
Obs
3
Pa first
101
Pa last
49
P.A. Now (θ)
119.7°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.17"
Mag pri
7.00
Mag sec
9.10
delta mag (ΔM)
2.1
Spectral class
F5 (yellow-white)
Pri motion ra
-024
Sec motion ra
Pri motion dec
-027
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ursa Major
SAO
62759
HIP
58184
Tycho2
2526-01407-1
HD
103613
BD
BD+36 2223
Distance
72.15
Distance ly
235.35
last precise pa
49.4
last precise sep
0.107
 
 
ORBITAL ELEMENTS
 
 
Period (P)13.53y Periastron (T)2010.54y Semi-major axis (a)0.143a
Eccentricity (e)0.165 Inclination (i)135.1° Longitude of periastron (ω)9.9°
Node (Ω)302.5° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2007
label rho theta
2000 0.106 187.3
2001 0.131 159.7
2002 0.153 141.0
2003 0.165 126.2
2004 0.164 112.3
2005 0.151 97.1
2006 0.129 77.6
2007 0.108 50.0
2008 0.100 13.5
2009 0.110 338.4
2010 0.119 309.8
2011 0.114 282.5
2012 0.099 248.6
2013 0.097 207.1
2014 0.117 172.9
2015 0.142 150.2
2016 0.160 133.7
2017 0.166 119.7
2018 0.159 105.5
2019 0.141 88.7
2020 0.118 65.9
2021 0.102 33.5
2022 0.103 356.2
2023 0.116 324.3
2024 0.119 297.3
2025 0.107 267.8
2026 0.095 229.3
2027 0.105 189.4
2028 0.129 161.1
2029 0.152 141.9
2030 0.165 127.0

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic